PCB Mix 1 ppb Back Catalog number: 95019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1722.17-500-IO 1H-Cyclopenta[l]phenanthrene, 500 µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 235-92-7 Price on request 9399.19-K-ME Doxepin-d3 hydrochloride Price on request 30032 EPA Method 525 - Fortification Solution Price on request